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Add some navigation shortcut in list views.

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Page-up/down, home/end, ^A, ^E, ^B, ^F, ^D, ^U keys do their things.
This commit is contained in:
Sadrul Habib Chowdhury
2010-02-24 00:29:19 -05:00
parent 8dea5b5ab9
commit 24246d27ea
1 changed files with 47 additions and 2 deletions
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49
src/list_generic.c
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@@ -68,9 +68,20 @@ glist_display(struct GenericList *list, const char *name)
return ldata;
}
static void
glist_decide_top(struct ListData *ldata)
{
int count = flayer->l_height - 5; /* 2 for header, 1 for footer */
struct ListRow *top = ldata->selected;
for (; count && top != ldata->root; top = top->prev, count--)
;
ldata->top = top;
}
static void ListProcess(char **ppbuf, int *plen)
{
struct ListData *ldata = flayer->l_data;
int count = 0;
while (*plen > 0)
{
@@ -114,7 +125,6 @@ static void ListProcess(char **ppbuf, int *plen)
case 'j':
if (!ldata->selected->next) /* Nothing to do */
break;
old = ldata->selected;
ldata->selected = old->next;
break;
@@ -123,6 +133,39 @@ static void ListProcess(char **ppbuf, int *plen)
ListAbort();
*plen = 0;
return;
case 0201: /* home */
case 0001: /* ^A */
ldata->selected = ldata->root;
break;
case 0205: /* end */
case 0005: /* ^E */
while (ldata->selected->next)
ldata->selected = ldata->selected->next;
if (ldata->selected->y != -1)
{
/* Both old and current selections are on the screen. So we can just
* redraw these two affected rows. */
}
break;
case 0004: /* ^D (half-page down) */
case 0006: /* page-down, ^F */
count = (flayer->l_height - 4) >> (ch == 0004);
for (; ldata->selected->next && --count;
ldata->selected = ldata->selected->next)
;
break;
case 0025: /* ^U (half-page up) */
case 0002: /* page-up, ^B */
count = (flayer->l_height - 4) >> (ch == 0025);
for (; ldata->selected->prev && --count;
ldata->selected = ldata->selected->prev)
;
break;
}
if (old == ldata->selected) /* The selection didn't change */
@@ -130,7 +173,9 @@ static void ListProcess(char **ppbuf, int *plen)
if (ldata->selected->y == -1)
{
/* We need to list all the rows, since we are scrolling down */
/* We need to list all the rows, since we are scrolling down. But first,
* find the top of the visible list. */
glist_decide_top(ldata);
glist_display_all(ldata);
}
else